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Finding the Fourth Proportional to 508.47, 762.84 and 264.93

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Solution

The fourth proportional to 508.47, 762.84 and 264.93 is: 397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.47 : 762.84 = 264.93 : x
  2. Step 2: Convert to fraction form
    508.47/762.84 = 264.93/x
  3. Step 3: Cross multiply
    508.47x = 762.84 × 264.93
  4. Step 4: Simplify right side
    508.47x = 202,099.20
  5. Step 5: Solve for x
    x = 202,099.20/508.47
  6. Step 6: Final answer
    x = 397.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.